Keychron K3 Max QMK/VIA Wireless Custom Mechanical Keyboard Brown Switches K3M-H3

Keychron K3 Max QMK/VIA Wireless Custom Mechanical Keyboard Brown Switches K3M-H3

The Keychron K3 Max QMK/VIA Low Profile Wireless Custom Mechanical Keyboard is an ultra-slim 75% compact mechanical keyboard designed for maximum versatility and efficiency. Supporting 2.4 GHz, Bluetooth 5.1, and USB Type-C wired connectivity, it seamlessly adapts to various work and gaming environments. Users can take full control of their setup using the Keychron Launcher web app, which enables key remapping, macros, and custom commands with ease. The LSA (low-profile spherical-angled) keycaps are designed for both Windows and macOS, ensuring a smooth typing experience right out of the box.

Designed for fast-paced gaming and professional multitasking, the K3 Max features a 1000Hz polling rate in both 2.4GHz and wired modes, minimizing input lag for near-instant responsiveness. The Gateron Low Profile Brown switches offer a tactical, pre-lubed feel, delivering responsive keystrokes with medium sound levels, making them ideal for Midway office work and gaming. The keyboard’s hot-swappable version allows users to customize their typing experience without soldering, making it easier than ever to swap switches for a personalized feel.

Powered by QMK/VIA firmware, the K3 Max provides extensive customization options for power users. The ARM Cortex-M4 32-bit MCU with 256KB Flash ensures stable performance, while the IXPE acoustic foam dampens keystroke sounds, creating a quieter and more comfortable typing experience. Additionally, redesigned stabilizers help reduce key wobble, especially on larger keys like the space bar, Shift, Enter, and Backspace, ensuring greater accuracy and consistency. For Mac users, the dedicated macOS layout replicates the Apple keyboard function keys, making it a seamless transition for Apple enthusiasts.

Aesthetically, the K3 Max combines functionality with style, featuring double-shot PBT keycaps for enhanced oil resistance and durability. With 22 RGB backlight effects (plus a white backlight option), users can further fine-tune brightness, hue, and effect speed for a fully immersive experience. The 1550mAh battery provides up to 73 hours of wireless use with backlight off and 42 hours with RGB at its lowest brightness, ensuring long-lasting wireless performance. Compact, powerful, and highly customizable, the Keychron K3 Max sets a new benchmark for low-profile mechanical keyboards.

• Customisable keyboard with 75% layout
• 2.4GHz & Bluetooth connection
• QMK/VIA Support
• Double-shot PBT keycaps
• Ultra-slim design
• Hot-swappable
• RGB LED lights
• Low profile Gateron Low Profile BROWN switches
• Acoustic foam

Specifications:

Colour: Black

Number of Keys: 84 (75%)

Switches: Gateron low-profile mechanical

Switch Face: North-facing

Number of Multimedia Keys: 12

Frame Material: ABS + Aluminium frame

Keycap Material: Low-profile double-shot PBT

Layout: ANSI

Polling Rate (2.4GHz and Wired Mode): 1000Hz

Polling Rate (BT Mode): 90Hz

N-Key Rollover (NKRO): Yes for both wireless and wired modes

Backlit: 22 types of RGB backlight options plus endless possibilities

Battery: 1550mAh rechargeable li-polymer battery

Wireless Working Time (Backlit off): Around 73 hours (Lab test result may vary by actual use)

Wireless Working Time (RGB): Around 42 hours (Lowest brightness)

Connection: 2.4GHz / Bluetooth / Type-C wired

Bluetooth version: 5.1

Bluetooth Device Name: Keychron K3 Max

Compatible System: macOS / Windows / Linux

Typing Angle: 2.5º, 4.2º and 6.5º

MCU: ARM Cortex-M4 32-bit STM32F402 (256KB Flash)

Operating Environment: -10 to 50℃

Gateron Low Profile BROWN Switch:

Operating force: 55 ± 15 gf

Pre-travel: 1.7 ± 0.4mm

Travel distance: 3.0 ± 0.2mm

Behavior: Tactile

Pre-lubed: Yes

Sound level: Medium

Suitable for: Midway Office/gaming

Product Dimensions: 30.6 x 11.6 x 1.7~2.2 cm

Product Weight: 525g

What's in the box:

• Keychron K3 Max QMK/VIA Low Profile Wireless Custom Mechanical Keyboard | BROWN Switches – Black x1
• Type-A to Type-C Cable x1
• Extension Adapter for Receiver x1
• Type-A 2.4GHz Receiver x1
• Keycap & Switch Puller x1